'\" te
.\" Copyright (c) 2007, Sun Microsystems, Inc.  All Rights Reserved 
.TH mlib_VideoInterpAveXY_U8_U8_16x16 3MLIB "2 Mar 2007" "SunOS 5.11" "mediaLib Library Functions"
.SH NAME
mlib_VideoInterpAveXY_U8_U8_16x16, mlib_VideoInterpAveXY_U8_U8_16x8, mlib_VideoInterpAveXY_U8_U8_8x16, mlib_VideoInterpAveXY_U8_U8_8x8, mlib_VideoInterpAveXY_U8_U8_8x4 \- half-pixel interpolation in the X and Y directions and averaging for reference block
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... \fB-lmlib\fR [ \fIlibrary\fR... ]
#include <mlib.h>

\fBmlib_status\fR \fBmlib_VideoInterpAveXY_U8_U8_16x16\fR(\fBmlib_u8 *\fR\fIcurr_block\fR,
     \fBconst mlib_u8 *\fR\fIref_block\fR, \fBmlib_s32\fR \fIfrm_stride\fR, \fBmlib_s32\fR \fIfld_stride\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_VideoInterpAveXY_U8_U8_16x8\fR(\fBmlib_u8 *\fR\fIcurr_block\fR,
     \fBconst mlib_u8 *\fR\fIref_block\fR, \fBmlib_s32\fR \fIfrm_stride\fR, \fBmlib_s32\fR \fIfld_stride\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_VideoInterpAveXY_U8_U8_8x16\fR(\fBmlib_u8 *\fR\fIcurr_block\fR,
     \fBconst mlib_u8 *\fR\fIref_block\fR, \fBmlib_s32\fR \fIfrm_stride\fR, \fBmlib_s32\fR \fIfld_stride\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_VideoInterpAveXY_U8_U8_8x8\fR(\fBmlib_u8 *\fR\fIcurr_block\fR,
     \fBconst mlib_u8 *\fR\fIref_block\fR, \fBmlib_s32\fR \fIfrm_stride\fR, \fBmlib_s32\fR \fIfld_stride\fR);
.fi

.LP
.nf
\fBmlib_status\fR \fBmlib_VideoInterpAveXY_U8_U8_8x4\fR(\fBmlib_u8 *\fR\fIcurr_block\fR,
     \fBconst mlib_u8 *\fR\fIref_block\fR, \fBmlib_s32\fR \fIfrm_stride\fR, \fBmlib_s32\fR \fIfld_stride\fR);
.fi

.SH DESCRIPTION
.sp
.LP
Each of these functions performs half-pixel interpolation in the X and Y directions and averaging for a reference block of data. In this mode, the motion-compensated reference block becomes the current block. Thus, the stride applies to both the input reference block and the current block.
.SH PARAMETERS
.sp
.LP
Each of the functions takes the following arguments:
.sp
.ne 2
.mk
.na
\fB\fIcurr_block\fR\fR
.ad
.RS 14n
.rt  
Pointer to the current block. curr_block must be 8-byte aligned.
.RE

.sp
.ne 2
.mk
.na
\fB\fIref_block\fR\fR
.ad
.RS 14n
.rt  
Pointer to the reference block.
.RE

.sp
.ne 2
.mk
.na
\fB\fIfrm_stride\fR\fR
.ad
.RS 14n
.rt  
Stride, in bytes, between adjacent rows in a frame in both the current block and the reference block. frm_stride must be a multiple of eight.
.RE

.sp
.ne 2
.mk
.na
\fB\fIfld_stride\fR\fR
.ad
.RS 14n
.rt  
Stride, in bytes, between adjacent rows in a field in both the current block and reference block. fld_stride must be a multiple of eight.
.RE

.SH RETURN VALUES
.sp
.LP
Each of the functions returns \fBMLIB_SUCCESS\fR if successful. Otherwise it returns \fBMLIB_FAILURE\fR.
.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityCommitted
_
MT-LevelMT-Safe
.TE

.SH SEE ALSO
.sp
.LP
\fBmlib_VideoAddBlock_U8_S16\fR(3MLIB), \fBmlib_VideoCopyRef_S16_U8\fR(3MLIB), \fBmlib_VideoCopyRef_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoCopyRef_U8_U8\fR(3MLIB), \fBmlib_VideoCopyRef_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoCopyRefAve_U8_U8\fR(3MLIB), \fBmlib_VideoCopyRefAve_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoH263OverlappedMC_S16_U8\fR(3MLIB), \fBmlib_VideoH263OverlappedMC_U8_U8\fR(3MLIB), \fBmlib_VideoInterpAveX_U8_U8\fR(3MLIB), \fBmlib_VideoInterpAveX_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpAveXY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpAveY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpAveY_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpX_S16_U8\fR(3MLIB), \fBmlib_VideoInterpX_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpX_U8_U8\fR(3MLIB), \fBmlib_VideoInterpXY_S16_U8\fR(3MLIB), \fBmlib_VideoInterpXY_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpXY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpXY_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpY_S16_U8\fR(3MLIB), \fBmlib_VideoInterpY_S16_U8_16x16\fR(3MLIB), \fBmlib_VideoInterpY_U8_U8\fR(3MLIB), \fBmlib_VideoInterpY_U8_U8_16x16\fR(3MLIB), \fBmlib_VideoP64Decimate_U8_U8\fR(3MLIB), \fBmlib_VideoP64Loop_S16_U8\fR(3MLIB), \fBmlib_VideoP64Loop_U8_U8\fR(3MLIB), \fBattributes\fR(5)